[Bob Carriere]

So what is the big deal.....

Never coudl figure out why the GM wiseguys called the early type "B" and the newer type "A"....... but here are the differences.

It is obvious that the early type was very close tolerances and vewry labour intensive....... I am lead to beleive that a similar change occurred to the Dodge 4x4 front axles to save time and precious resources....

No doubt in my mind that the type "B" is a much smoother U-joint and just as strong....... the beauty of the design being that between left and right side the only difference is the lenght of the removable inner axle stub...... quite ingenious.

Have a look at the following pictures.....

The type "A" which you are mostlikely to encounter is the one with the simple massive yokes......

The type "B" is the more elaborate all enclosed cup.